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For a 2x4 get a four pack of QB132s ($133) or QB120s ($124) from amazon. You can run the four QB132s with either the cheap LRS-350-36 driver ($40) or the more expensive, but more efficient and dimmable HLG-320H-36A ($85) driver. With the four QB120s, you can run them with the cheap LRS-350-24...

I'm a musician, so I have some gear. Before I started growing in the current house, I simply put my music gear in that room, hired an electrician, and had him run a dedicated 20 amp circuit for my "studio". If you don't have any gear, just tell him you're going to have a recording studio in...

It makes no sense to say check it once a day. If a fire is going to start it's going to start in a few minutes, checking it once a day won't prevent that. I don't see any increased risk of leaving your garden for a few days vs leaving it for 12 hours

Come on now, let's not exaggerate. They've been in stock for months and then just ran out last week.

Dude, two groups of four QB132s in 3500k just appeared back on Amazon! No heat sinks or frames required. This is the color temperature that I use for veg and flower and it works beautifully, really tight nodes in veg and really rock hard buds in flower. Better hurry...

Also, what's the big deal with heat sinks when the link I gave you to the qb288 that come with heat sinks cost the same as the four other boards without heatsinks? By the way, they were available when I first started telling you about it but you let them sell out. I tried to warn you

Go over to LED Gardner, he strongly recommends 3000k to 3500k for the color temperature to get if you want to use the lights for both veg and flower

Okay, first of all, yes, you could use eight boards and run them at a lower wattage. The cost up front would be more, but you would save in the long run on electricity. I would recommend getting the minimum amount of boards that you need for now, then after the first one or two successful...

Yeah, I wasn't trying to get you to buy anything, I was just telling you that top-of-the-line LEDs are very cheap and a very good option for people like the OP because Quantum boards do just as well as HPS, run cooler, and use less power

The price is already reasonable for high-end LED gear. You can fit out a 3 by 3 with Quantum boards for less than $200. Quantum boards are top-of-the-line in LEDs right now.

Beautiful buds!

Why would he get old tech blurples when he can get quantum boards at a price that is within his budget? He's asking for advice, and that's bad advice. Obviously, he wants to know what is the BEST thing he can get for $300. Why do you automatically assume that everyone who likes Quantum boards...

Why in the hell would he get blurples when he can get quantum boards for the same price? Blurple is old tech.

Beatiful!!!

Okay, here are the links to everything you will need. As this thread has been going, they sold out of the QB132s. There are ONLY SEVEN QB120s LEFT (packs of four) in 3000k, which will make some beautiful buds. So, I would suggest you hurry. Four QB120s...

Thanks for the link. Are these things totally 100% reliable? I mean, I would love to use them but I'm just thinking about bugs in apps and shit. The timer is something that cannot screw up.

Sure, I will absolutely help you with a parts list. Before we start, however, since you guys are in Canada, I need to know, can you order off regular Amazon for instance? If so, I can go ahead and put links to the parts you will need, if not, I need to know how you can go about getting the...

That's a great option, but I would prefer the qb132s for the better coverage. I would only move into the QB288 range if I was trying to cover a 25 square feet or more. Take that with a grain of salt though because I've experienced the qb132 and I've never seen a qb288 in person. It must be...

This should be all you need http://ledgardener.com/diy-led-strip-build-designs-samsung-bridgelux/

Does your humidity gauge actually say 12?